1 #ifndef MSP_GL_SL_GENERATE_H_
2 #define MSP_GL_SL_GENERATE_H_
14 /** Combines multiple declarations of the same identifier into one. */
15 class DeclarationCombiner: private TraversingVisitor
18 std::map<std::string, std::vector<FunctionDeclaration *> > functions;
19 std::map<std::string, VariableDeclaration *> variables;
20 std::set<Node *> nodes_to_remove;
26 virtual void visit(Block &);
27 virtual void visit(VariableDeclaration &);
28 virtual void visit(FunctionDeclaration &) { }
31 /** Manipulates specialization constants. If values are specified, turns
32 specialization constants into normal constants. Without values assigns
33 automatic constant_ids to specialization constants. */
34 class ConstantSpecializer: private TraversingVisitor
37 const std::map<std::string, int> *values;
40 ConstantSpecializer();
42 void apply(Stage &, const std::map<std::string, int> *);
45 virtual void visit(VariableDeclaration &);
48 /** Forms links between nested blocks in the syntax tree. */
49 class BlockHierarchyResolver: private TraversingVisitor
52 void apply(Stage &s) { s.content.visit(*this); }
55 virtual void enter(Block &);
58 /** Resolves types of variables and base types of other types. */
59 class TypeResolver: private TraversingVisitor
63 std::map<TypeDeclaration *, TypeDeclaration *> alias_map;
64 std::map<TypeDeclaration *, TypeDeclaration *> array_types;
65 NodeList<Statement>::iterator type_insert_point;
73 TypeDeclaration *resolve_type(const std::string &);
74 virtual void visit(Block &);
75 virtual void visit(BasicTypeDeclaration &);
76 virtual void visit(ImageTypeDeclaration &);
77 virtual void visit(StructDeclaration &);
78 virtual void visit(VariableDeclaration &);
79 virtual void visit(FunctionDeclaration &);
82 /** Resolves variable references. Variable references which match the name
83 of an interface block are turned into interface block references. */
84 class VariableResolver: private TraversingVisitor
88 std::map<std::string, VariableDeclaration *> *r_members;
89 RefPtr<InterfaceBlockReference> r_iface_ref;
90 std::string block_interface;
92 bool r_self_referencing;
93 VariableDeclaration *r_assignment_target;
101 virtual void enter(Block &);
102 virtual void visit(VariableReference &);
103 virtual void visit(InterfaceBlockReference &);
104 virtual void visit(MemberAccess &);
105 virtual void visit(UnaryExpression &);
106 virtual void visit(BinaryExpression &);
107 virtual void visit(Assignment &);
108 virtual void visit(FunctionCall &);
109 virtual void visit(VariableDeclaration &);
110 virtual void visit(InterfaceBlock &);
113 /** Resolves function declarations and calls. */
114 class FunctionResolver: private TraversingVisitor
118 std::map<std::string, std::vector<FunctionDeclaration *> > declarations;
124 virtual void visit(FunctionCall &);
125 virtual void visit(FunctionDeclaration &);
128 /** Materializes implicitly declared interfaces.
130 Out variable declarations inside functions are moved to the global scope.
132 Passthrough statements are processed, generating out variables to match in
133 variables and copying values.
135 Unresolved variables are looked up in the previous stage's out variables. */
136 class InterfaceGenerator: private TraversingVisitor
140 std::string in_prefix;
141 std::string out_prefix;
143 InterfaceBlock *iface_block;
145 Block *iface_target_block;
146 NodeList<Statement>::iterator iface_insert_point;
147 NodeList<Statement>::iterator assignment_insert_point;
148 std::set<Node *> nodes_to_remove;
151 InterfaceGenerator();
156 static std::string get_out_prefix(Stage::Type);
157 std::string change_prefix(const std::string &, const std::string &) const;
158 virtual void visit(Block &);
159 VariableDeclaration *generate_interface(VariableDeclaration &, const std::string &, const std::string &);
160 InterfaceBlock *generate_interface(InterfaceBlock &);
161 ExpressionStatement &insert_assignment(const std::string &, Expression *);
162 virtual void visit(VariableReference &);
163 virtual void visit(VariableDeclaration &);
164 virtual void visit(InterfaceBlock &);
165 virtual void visit(FunctionDeclaration &);
166 virtual void visit(Passthrough &);